Xia Wantang is physically and mentally exhausted by life's trivialities and consecutive blind dates, while Gu Jingshen feels immense pressure under family expectations and arranged marriage plans. A seemingly mutually beneficial agreement marriage tightly connects two people who originally had no intersection. She merely regards this as a temporary breathing space, but he views that marriage certificate as a formal permission to approach and protect her. From feigned compliance to true devotion, the two slowly turn a transaction into each other's harbor through day-to-day companionship.